Prospect

AZ: Cochise Co.

Age.
May be considered Irvingtonian or very late Blancan. Morgan and White (2005) note the absence of Mammuthus, often correlated with the start of the Irvingtonian, as suggestive of a late Blancan age. For the purposes here, the site will be considered late Blancan.

General Description. Sediments of the St. David formation (Johnson et al. 1975).